Saw.



Iatented September 22, 1903 PATENT OFFICE.

siLAs TOLES, OF-GALT, CANADA.

SAW.

SPECIFICATION forming part of Letters Patent No. 739,361, datedSeptember 22, 1903.

Application filed April 10, 1903. Serial No- 151,983. (No model.)

To aZZ whom it may concern:

Be it known that I, SILAS TOLES, saw- I maker, of the town of Gait, inthe county of of sawdust to any appreciable extent between theindividual teeth of each .pair and between the pairs of each set, thusstoring the sawdust in large dust-spaces'situated between the series ofsets of teeth.

The construction of my saw will be hereinafter fully described.

Figure 1 is a side elevation of a portion of a crosscut-saw constructedaccording to my invention. Figs. 2 and 3 are views of a sawtoothconstructed according to my invention.

In the drawings like letters of reference indicate corresponding partsin each figure.

It will of course be understood that the teeth may be made of anythickness, width, and depth and that they may be constructed with theusual perforations, if desired. It will of course be understood by onefamiliar with this art that the saw-teeth must be set in the usualmanner. The teeth are all provided with a single side bevel A, as shown,thus forming the side cutting edge B, which may be constructed at anysuitable angle required for practical use. Thus beveling the toothessentially forms the apex or cuttingpoint B at one side of the tooth.As the .are separated from each other by a small space E of sufficientwidth and depth, but not large enough to provide a dust-space of anyutility. The cutting-points B of each pair of teeth are placed oppositeeach other.

From this it will be understood that the cuttin g-points of the pairFoperate in the opposite side of the kerf to that of the cutting-pointsof the pair I. If the saw were moved in the direction indicated byarrow, the cutting edge of the tooth D would cut into the wood, and theblunt portion 0 of the side A of the tooth E would comein contact withthe rib formed by the cut and loosen same. As the teeth G and H of thesecond pair I follow the first pair the cutting edge of the tooth G cutsthe opposite side of the kerf, and the blunt portion 0 of the side A ofthe tooth H comes in contact with the rib formed by both pairs of teethand leaves same loose in the kerf. As the spaces between thecutting-teeth of my saw are not large-enough to provide dust-spaces ofany utility, it will he understood that the said cutting-teeth do notcarry the dust out of the kerf, and in order to remove this dust Iprovide a raker or drag tooth J, of any suitable construction, situatedbetween two sets of teeth constructed as described and separatedtherefrom by the dust-spaces K, which are made quite large, so as toafford sufficient storage-room for the dust.

As is quite usual in saw manufacture, the raker or drag teeth J are madeshorterthan the cutting-teeth. It will be noticed that the sides j ofthe raker or drag teeth are not at all beveled, but are preferablyconstructed at right angles to the body of the tooth.

Although I have shown the pairs of teeth on each side of the raker ordrag teeth J as being beveled on the same side of the saw, this isimmaterial.

The spaces E between the teeth of each pairneed not necessarily be madeof the depth indicated in the drawings, as the teeth have only to beprovided with the sides A for a sufficient distance to form the bluntportion 0. Although I have shown spaces I1 v between the different pairsof teeth, it must be understood that I may construct my saw withoutsame. I only construct my saw with the said ing their apexes directlyopposed to each other, and being separated by a space E forming thesides A of the teeth to provide blunt portions 0; a second pair of teethsimilarly beveled to the said first pair of teeth, but on the other sideof the saw, the apexes of the said second pair also being directlyopposed to each other, the teeth of said second pair being separated bya space E forming the sides A of the teeth to provide blunt portions 0;a second set of teeth, comprising first and second pairs constructedsimilarly to the first and second pairs before described, and a raker ordrag tooth situated between said sets of teeth and separated therefromby the large I 5 dust-spaces K; the said spaces E being much smallerthan the said dust-spaces, substantially as set forth and described.

In testimony whereof I have signed my name to this specification in thepresence of 20 two subscribing Witnesses.

SILAS TOLES.

Witnesses:

EGERTON R. CASE, W. H. SMITH.

